Fig. 2: Synteny and rearrangements between the a2 genomes of Microbotryum superbum and M. lagerheimii, with all contigs (top) or only the mating-type chromosomes (bottom).
From: Repeated loss of function at HD mating-type genes and of recombination in anther-smut fungi
Contigs are drawn to scale. The M. lagerheimii genome represents a proxy for the ancestral state before recombination suppression and with two separate mating-type chromosomes (the PR chromosome is split into two contigs in this genome but they constitute a single chromosome17). The HD mating-type chromosome from M. lagerheimii is represented in blue and the PR mating-type chromosome in purple, with links to orthologous genes to the M. superbum mating-type chromosomes. The positions of the HD and PR mating-type genes are indicated in red, and by red links between the two genomes, and by blue and purple circles. The pheromone genes are indicated within orange circles. Centromeres are indicated in yellow and telomeres with green triangles. The PR chromosome shows a substantial increase in size and a chaos of rearrangements. The links between M. lagerheimii mating-type chromosomes and M. shykoffianum autosomes likely represent repeats undetected in our filters, especially as many points to ends of contigs. Source data are provided as a Source Data file.
